Home / 89,078.60-133,715.10-49,615.40

Finding the Fourth Proportional to 89,078.60, 133,715.10 and 49,615.40

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Solution

The fourth proportional to 89,078.60, 133,715.10 and 49,615.40 is: 74,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,078.60 : 133,715.10 = 49,615.40 : x
  2. Step 2: Convert to fraction form
    89,078.60/133,715.10 = 49,615.40/x
  3. Step 3: Cross multiply
    89,078.60x = 133,715.10 × 49,615.40
  4. Step 4: Simplify right side
    89,078.60x = 6,634,328,172.54
  5. Step 5: Solve for x
    x = 6,634,328,172.54/89,078.60
  6. Step 6: Final answer
    x = 74,477.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.